786  
FNUS56 KOTX 161218  
FWFOTX  
 
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO  
NATIONAL WEATHER SERVICE SPOKANE WA  
518 AM PDT FRI APR 16 2021  
 
   
DISCUSSION
 
 
   
..COLD FRONT SUNDAY AFTERNOON BRINGING BREEZY NORTHEAST WINDS
 
 
THE WARMING, DRY TREND WILL CONTINUE THROUGH SATURDAY. AFTERNOON  
RHS ARE EXPECTED TO REACH INTO THE TEENS TO LOW 20S. WIDESPREAD  
70S EXPECTED THROUGH SUNDAY. RHS WILL BE SLIGHTLY HIGHER ON  
SUNDAY. A COLD FRONT WILL PASS THROUGH THE REGION FROM CANADA  
LATE SUNDAY THROUGH MONDAY MORNING. IT IS EXPECTED TO BRING  
STRONG WINDS TO THE NORTHERN VALLEYS AND COLUMBIA BASIN.  
WIND SPEEDS EXPECTED TO BE 10 TO 20 SUSTAINED WITH GUSTS 25 TO 35  
MPH. NO DECENT PRECIP CHANCES UNTIL END OF NEXT WEEK.  
 
***************************************************************  
FORECASTS FOR 20 FOOT WIND SPEEDS (VALLEYS AND RIDGE TOPS) ARE  
10 MINUTE AVERAGES REFLECTING RAWS WIND.  
***************************************************************  
 
WAZ676-677-170145-  
EAST WASHINGTON SOUTH CENTRAL CASCADE VALLEYS (ZONE 676)-  
EAST WASHINGTON CENTRAL CASCADE VALLEYS (ZONE 677)-  
INCLUDING THE CITIES OF KITTITAS VALLEY, NACHES RIVER VALLEY,  
LAKE CHELAN AREA, AND WENATCHEE RIVER VALLEY AREA  
518 AM PDT FRI APR 16 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....67-77.  
* 24 HR TREND........3 DEGREES WARMER.  
* MIN HUMIDITY........13-23 PERCENT.  
* 24 HR TREND........UNCHANGED.  
* 20-FOOT WINDS.......EAST 3 TO 14 MPH WITH GUSTS TO AROUND 25 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......6000 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* LAL.................1.  
* MIN TEMPERATURE.....43-49.  
* 24 HR TREND........3 DEGREES WARMER.  
* MAX HUMIDITY........40-55 PERCENT.  
* 24 HR TREND........5 PERCENT WETTER.  
* HUMIDITY RECOVERY...POOR.  
* 20-FOOT WINDS.......NORTH 3 TO 13 MPH. GUSTS UP TO 25 MPH IN THE  
EVENING.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTH 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....71-81.  
* MIN HUMIDITY........12-22 PERCENT.  
* 20-FOOT WINDS.......NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO  
THE SOUTHEAST IN THE AFTERNOON.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......6000 FT AGL.  
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
MOSTLY CLEAR. LOWS 45 TO 52. HIGHS 72 TO 82. NORTHWEST  
WIND 5 TO 15 MPH.    
MONDAY THROUGH TUESDAY
 
MOSTLY CLEAR. LOWS 38 TO 47. HIGHS  
60 TO 70. NORTH WIND 5 TO 15 MPH.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS 39 TO 49. HIGHS  
65 TO 75.  
 
.8 TO 14 DAY OUTLOOK FOR APR 23 - 29 2021  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ680-682-170145-  
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS (ZONE 680)-  
EAST WASHINGTON CENTRAL CASCADE MOUNTAINS (ZONE 682)-  
INCLUDING THE CITIES OF CHINOOK PASS, WHITE PASS, STEVENS PASS,  
LAKE WENATCHEE AREA, AND CLE ELUM  
518 AM PDT FRI APR 16 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....62-72 VALLEYS AND 52-62 MOUNTAINS.  
* 24 HR TREND........2 DEGREES COOLER.  
* MIN HUMIDITY........22-30 PERCENT VALLEYS AND 25-40 PERCENT  
MOUNTAINS.  
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT DRIER  
MOUNTAINS.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...EAST 4 TO 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
* RIDGES/UPR SLOPES....EAST 5 TO 16 MPH WITH GUSTS TO AROUND 30  
MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......4500 FT AGL.  
* TRANSPORT WINDS.....EAST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* LAL.................1.  
* MIN TEMPERATURE.....37-46.  
* 24 HR TREND........5 DEGREES WARMER.  
* MAX HUMIDITY........45-60 PERCENT.  
* 24 HR TREND........5 PERCENT WETTER VALLEYS, AND 15 PERCENT DRIER  
MOUNTAINS.  
* HUMIDITY RECOVERY...POOR.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 13 MPH. GUSTS UP TO 25 MPH IN  
THE EVENING.  
* RIDGES/UPR SLOPES....EAST 4 TO 15 MPH. GUSTS UP TO 30 MPH IN THE  
EVENING.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....EAST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....67-77 VALLEYS AND 58-68 MOUNTAINS.  
* MIN HUMIDITY........22-30 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...SOUTHEAST 3 TO 6 MPH.  
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 8 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......5500 FT AGL.  
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY...MOSTLY CLEAR. LOWS 39 TO 48. HIGHS 65 TO 75 VALLEYS
 
 
57 TO 67 MOUNTAINS. NORTHWEST WIND 5 TO 10 MPH.    
MONDAY THROUGH TUESDAY
 
MOSTLY CLEAR. LOWS 32 TO 42. HIGHS  
55 TO 65 VALLEYS...46 TO 56 MOUNTAINS. SOUTHWEST WIND 5 TO  
10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 31 TO 41. HIGHS 57 TO  
67 VALLEYS...49 TO 59 MOUNTAINS.    
THURSDAY
 
PARTLY CLOUDY. LOWS 32 TO 42. HIGHS 56 TO  
66 VALLEYS...49 TO 59 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR APR 23 - 29 2021  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ662-170145-  
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL  
RECREATIONAL AREA (ZONE 662)-  
INCLUDING THE CITY OF STEHEKIN  
518 AM PDT FRI APR 16 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....63-73 VALLEYS AND 52-62 MOUNTAINS.  
* 24 HR TREND........3 DEGREES WARMER.  
* MIN HUMIDITY........25-35 PERCENT VALLEYS AND 30-45 PERCENT  
MOUNTAINS.  
* 24 HR TREND........5 PERCENT DRIER.  
* 20-FOOT WINDS.......EAST 3 TO 7 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......4000 FT AGL.  
* TRANSPORT WINDS.....EAST 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........CLEAR.  
* LAL.................1.  
* MIN TEMPERATURE.....38-47 VALLEYS AND 33-39 MOUNTAINS.  
* 24 HR TREND........3 DEGREES WARMER.  
* MAX HUMIDITY........55-70 PERCENT.  
* 24 HR TREND........UNCHANGED VALLEYS, AND 5 PERCENT WETTER  
MOUNTAINS.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......EAST 3 TO 6 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....EAST AROUND 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....68-78 VALLEYS AND 56-66 MOUNTAINS.  
* MIN HUMIDITY........26-35 PERCENT.  
* 20-FOOT WINDS.......SOUTHEAST 3 TO 5 MPH IN THE MORNING SHIFTING  
TO THE SOUTHWEST IN THE AFTERNOON.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......5500 FT AGL.  
* TRANSPORT WINDS.....SOUTH 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY...MOSTLY CLEAR. LOWS 40 TO 48 VALLEYS
 
34 TO  
41 MOUNTAINS. HIGHS 64 TO 74 VALLEYS...53 TO 63 MOUNTAINS.  
NORTHWEST WIND UP TO 10 MPH.    
MONDAY THROUGH TUESDAY...MOSTLY CLEAR. LOWS 34 TO 42 VALLEYS
 
 
28 TO 36 MOUNTAINS. HIGHS 56 TO 66 VALLEYS...45 TO 55 MOUNTAINS.  
SOUTHWEST WIND 5 TO 10 MPH.    
WEDNESDAY...MOSTLY CLEAR. LOWS 35 TO 42 VALLEYS
 
28 TO  
36 MOUNTAINS. HIGHS 58 TO 68 VALLEYS...45 TO 55 MOUNTAINS.    
THURSDAY...PARTLY CLOUDY. LOWS 36 TO 43 VALLEYS
 
29 TO  
36 MOUNTAINS. HIGHS 55 TO 65 VALLEYS...44 TO 54 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR APR 23 - 29 2021  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ685-170145-  
EAST WASHINGTON NORTH CASCADES (ZONE 685)-  
INCLUDING THE CITIES OF MAZAMA, CONCONULLY,  
NORTH CASCADES HIGHWAY, AND PASAYTEN WILDERNESS  
518 AM PDT FRI APR 16 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....64-74 VALLEYS AND 50-60 MOUNTAINS.  
* 24 HR TREND........1 DEGREE WARMER.  
* MIN HUMIDITY........19-29 PERCENT VALLEYS AND 27-40 PERCENT  
MOUNTAINS.  
* 24 HR TREND........1 PERCENT WETTER VALLEYS, AND 5 PERCENT DRIER  
MOUNTAINS.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...SOUTHEAST 3 TO 5 MPH.  
* RIDGES/UPR SLOPES....EAST 3 TO 6 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......4000 FT AGL.  
* TRANSPORT WINDS.....EAST 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* LAL.................1.  
* MIN TEMPERATURE.....41-47 VALLEYS AND 33-43 MOUNTAINS.  
* 24 HR TREND........3 DEGREES WARMER.  
* MAX HUMIDITY........45-60 PERCENT VALLEYS AND 55-70 PERCENT  
MOUNTAINS.  
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT WETTER  
MOUNTAINS.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 5 MPH.  
* RIDGES/UPR SLOPES....NORTH 3 TO 6 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTH 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....68-78 VALLEYS AND 55-65 MOUNTAINS.  
* MIN HUMIDITY........25-40 PERCENT.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 4 MPH IN THE MORNING SHIFTING  
TO THE SOUTHEAST 3 TO 6 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....WEST 3 TO 5 MPH IN THE MORNING SHIFTING TO  
THE SOUTHWEST IN THE AFTERNOON.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......5500 FT AGL.  
* TRANSPORT WINDS.....WEST 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY...MOSTLY CLEAR. LOWS 42 TO 49 VALLEYS
 
34 TO  
44 MOUNTAINS. HIGHS 65 TO 75 VALLEYS...53 TO 63 MOUNTAINS. NORTH  
WIND 5 TO 15 MPH.    
MONDAY THROUGH TUESDAY...MOSTLY CLEAR. LOWS 36 TO 44 VALLEYS
 
 
28 TO 38 MOUNTAINS. HIGHS 57 TO 67 VALLEYS...45 TO 55 MOUNTAINS.  
WEST WIND 5 TO 10 MPH.    
WEDNESDAY...MOSTLY CLEAR. LOWS 37 TO 43 VALLEYS
 
28 TO  
38 MOUNTAINS. HIGHS 61 TO 71 VALLEYS...48 TO 58 MOUNTAINS.    
THURSDAY...PARTLY CLOUDY. LOWS 38 TO 44 VALLEYS
 
29 TO  
39 MOUNTAINS. HIGHS 60 TO 70 VALLEYS...47 TO 57 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR APR 23 - 29 2021  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ684-170145-  
EAST WASHINGTON OKANOGAN/METHOW VALLEYS (ZONE 684)-  
INCLUDING THE CITIES OF METHOW RIVER VALLEY, OKANOGAN VALLEY,  
AND NESPELEM  
518 AM PDT FRI APR 16 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....69-79.  
* 24 HR TREND........2 DEGREES WARMER.  
* MIN HUMIDITY........13-21 PERCENT.  
* 24 HR TREND........UNCHANGED.  
* 20-FOOT WINDS.......EAST 3 TO 5 MPH IN THE MORNING SHIFTING TO  
THE WEST 3 TO 6 MPH IN THE AFTERNOON.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......5500 FT AGL.  
* TRANSPORT WINDS.....NORTH 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* LAL.................1.  
* MIN TEMPERATURE.....43-49.  
* 24 HR TREND........UNCHANGED.  
* MAX HUMIDITY........45-55 PERCENT.  
* 24 HR TREND........5 PERCENT WETTER.  
* HUMIDITY RECOVERY...POOR.  
* 20-FOOT WINDS.......NORTH 3 TO 5 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....74-84.  
* MIN HUMIDITY........13-21 PERCENT.  
* 20-FOOT WINDS.......NORTH 3 TO 4 MPH IN THE MORNING SHIFTING TO  
THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.  
* HAINES INDEX........2 OR VERY LOW.  
* MIXING HEIGHT.......6000 FT AGL.  
* TRANSPORT WINDS.....WEST 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 72 TO 82. NORTH WIND  
5 TO 15 MPH.    
MONDAY THROUGH TUESDAY
 
MOSTLY CLEAR. LOWS 38 TO 47. HIGHS  
61 TO 71. SOUTH WIND UP TO 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 40 TO 46. HIGHS 66 TO 76.    
THURSDAY
 
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 66 TO 76.  
 
.8 TO 14 DAY OUTLOOK FOR APR 23 - 29 2021  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ686-687-170145-  
EAST WASHINGTON NORTHEAST (ZONE 686)-  
EAST WASHINGTON OKANOGAN HIGHLANDS (ZONE 687)-  
INCLUDING THE CITIES OF DEER PARK, COLVILLE, NEWPORT, KELLER,  
REPUBLIC, AND CURLEW  
518 AM PDT FRI APR 16 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....65-75 VALLEYS AND 56-65 MOUNTAINS.  
* 24 HR TREND........3 DEGREES WARMER.  
* MIN HUMIDITY........16-25 PERCENT.  
* 24 HR TREND........3 PERCENT DRIER.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 6 MPH.  
* RIDGES/UPR SLOPES....NORTHEAST 3 TO 6 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* LAL.................1.  
* MIN TEMPERATURE.....39-46.  
* 24 HR TREND........2 DEGREES WARMER.  
* MAX HUMIDITY........50-65 PERCENT.  
* 24 HR TREND........UNCHANGED VALLEYS, AND 5 PERCENT WETTER  
MOUNTAINS.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 5 MPH.  
* RIDGES/UPR SLOPES....NORTH 3 TO 5 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......4000 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHEAST 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....69-79 VALLEYS AND 60-68 MOUNTAINS.  
* MIN HUMIDITY........17-26 PERCENT VALLEYS AND 24-35 PERCENT  
MOUNTAINS.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHEAST AROUND 3 MPH IN THE MORNING  
SHIFTING TO THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....WEST 3 TO 6 MPH.  
* HAINES INDEX........2 OR VERY LOW.  
* MIXING HEIGHT.......7500 FT AGL.  
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY...PARTLY CLOUDY. LOWS 41 TO 48. HIGHS 65 TO 75 VALLEYS
 
 
56 TO 65 MOUNTAINS. NORTH WIND 5 TO 15 MPH.    
MONDAY
 
COOLER. MOSTLY CLEAR. LOWS 33 TO 41. HIGHS 55 TO  
65 VALLEYS...47 TO 55 MOUNTAINS. EAST WIND UP TO 10 MPH.    
TUESDAY...MOSTLY CLEAR. LOWS 33 TO 40. HIGHS 59 TO 69 VALLEYS
 
 
52 TO 59 MOUNTAINS. EAST WIND UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 36 TO 42. HIGHS 62 TO  
72 VALLEYS...54 TO 62 MOUNTAINS.    
THURSDAY
 
PARTLY CLOUDY. LOWS 37 TO 44. HIGHS 61 TO  
71 VALLEYS...53 TO 61 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR APR 23 - 29 2021  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
IDZ101-170145-  
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-  
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,  
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE  
518 AM PDT FRI APR 16 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....60-70 VALLEYS AND 50-60 MOUNTAINS.  
* 24 HR TREND........1 DEGREE WARMER.  
* MIN HUMIDITY........21-30 PERCENT VALLEYS AND 30-45 PERCENT  
MOUNTAINS.  
* 24 HR TREND........7 PERCENT DRIER.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...NORTHEAST 3 TO 8 MPH.  
* RIDGES/UPR SLOPES....NORTHEAST 4 TO 9 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......5500 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* LAL.................1.  
* MIN TEMPERATURE.....35-45.  
* 24 HR TREND........1 DEGREE WARMER.  
* MAX HUMIDITY........55-70 PERCENT.  
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 5 PERCENT WETTER  
MOUNTAINS.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...EAST 3 TO 6 MPH.  
* RIDGES/UPR SLOPES....EAST 3 TO 6 MPH.  
* HAINES INDEX........2 OR VERY LOW.  
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....65-75 VALLEYS AND 55-65 MOUNTAINS.  
* MIN HUMIDITY........25-35 PERCENT VALLEYS AND 30-45 PERCENT  
MOUNTAINS.  
* 20-FOOT WINDS.......  
* VALLEYS/LWR SLOPES...EAST 3 TO 5 MPH IN THE MORNING SHIFTING TO  
THE WEST IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 4 MPH IN THE MORNING SHIFTING  
TO THE WEST 3 TO 6 MPH IN THE AFTERNOON.  
* HAINES INDEX........2 OR VERY LOW.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 0 TO 5 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS, HIGH MOUNTAIN  
SNOW AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 40 TO 48 VALLEYS...  
35 TO 42 MOUNTAINS. HIGHS 60 TO 70 VALLEYS...51 TO 61 MOUNTAINS.  
EAST WIND 5 TO 15 MPH.    
MONDAY...COOLER. MOSTLY CLEAR. LOWS 31 TO 36 VALLEYS
 
25 TO  
32 MOUNTAINS. HIGHS 51 TO 59 VALLEYS...41 TO 51 MOUNTAINS.  
NORTHEAST WIND 5 TO 15 MPH.    
TUESDAY...MOSTLY CLEAR. LOWS 31 TO 37 VALLEYS
 
25 TO  
32 MOUNTAINS. HIGHS 56 TO 64 VALLEYS...47 TO 56 MOUNTAINS.  
NORTHEAST WIND UP TO 5 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 31 TO 39. HIGHS 59 TO  
68 VALLEYS...50 TO 59 MOUNTAINS.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 37 TO  
43 VALLEYS...31 TO 39 MOUNTAINS. HIGHS 59 TO 68 VALLEYS...49 TO  
58 MOUNTAINS.  
 
.8 TO 14 DAY OUTLOOK FOR APR 23 - 29 2021  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
WAZ673-674-170145-  
EAST WASHINGTON NORTHERN COLUMBIA BASIN (ZONE 673)-  
EAST WASHINGTON PALOUSE AND SPOKANE AREA (ZONE 674)-  
INCLUDING THE CITIES OF WATERVILLE, WILBUR, RITZVILLE,  
MOSES LAKE, SPOKANE, CHENEY, DAVENPORT, AND PULLMAN  
518 AM PDT FRI APR 16 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....68-77.  
* 24 HR TREND........2 DEGREES WARMER.  
* MIN HUMIDITY........14-21 PERCENT.  
* 24 HR TREND........5 PERCENT DRIER.  
* 20-FOOT WINDS.......NORTHEAST 5 TO 12 MPH WITH GUSTS TO AROUND 25  
MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......7000 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST 10 TO 20 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* LAL.................1.  
* MIN TEMPERATURE.....39-47.  
* 24 HR TREND........UNCHANGED.  
* MAX HUMIDITY........50-65 PERCENT.  
* 24 HR TREND........5 PERCENT WETTER.  
* HUMIDITY RECOVERY...FAIR.  
* 20-FOOT WINDS.......NORTHEAST 3 TO 10 MPH.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......4000 FT AGL FALLING TO NEAR SURFACE.  
* TRANSPORT WINDS.....NORTHEAST 5 TO 15 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* LAL.................1.  
* MAX TEMPERATURE.....73-81.  
* MIN HUMIDITY........13-20 PERCENT.  
* 20-FOOT WINDS.......EAST 3 TO 7 MPH IN THE MORNING SHIFTING TO  
THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.  
* HAINES INDEX........3 OR VERY LOW.  
* MIXING HEIGHT.......6500 FT AGL.  
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.  
* CWR (> 0.10 IN).....0 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...
 
   
SUNDAY
 
MOSTLY CLEAR. LOWS 42 TO 50. HIGHS 74 TO 84. NORTHWEST  
WIND 5 TO 15 MPH.    
MONDAY THROUGH TUESDAY
 
MOSTLY CLEAR. LOWS 36 TO 46. HIGHS  
62 TO 72. NORTHEAST WIND 5 TO 15 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 38 TO 45. HIGHS 68 TO 77.    
THURSDAY
 
PARTLY CLOUDY. LOWS 41 TO 47. HIGHS 68 TO 77.  
 
.8 TO 14 DAY OUTLOOK FOR APR 23 - 29 2021  
 
ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.  
 

 
 
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